Let's Debug

Test result for www.flystore.net using http-01

Warning
The domain www.flystore.net is being served through Cloudflare CDN. Any Let's Encrypt certificate installed on the origin server will only encrypt traffic between the server and Cloudflare. It is strongly recommended that the SSL option 'Full SSL (strict)' be enabled.
https://support.cloudflare.com/hc/en-us/articles/200170416-What-do-the-SSL-options-mean-

Submitted Oct 7 19:44:51 2022. Sat in queue for 4ms. Completed in 11s. Show verbose information.